Galatians 2

15,16 We Jews know that we have no advantage of birth over "non-Jewish sinners." We know very well that we are not set right with God by rule-keeping but only through personal faith in Jesus Christ. How do we know? We tried it—and we had the best system of rules the world has ever seen! Convinced that no human being can please God by self-improvement, we believed in Jesus as the Messiah so that we might be set right before God by trusting in the Messiah, not by trying to be good.